baber/WOPTO huggingface dataset:
Patent GB-1032176-A (GB)
Title: Improvements in or relating to air cushion borne vehicles
Inventor: WATTS GORDON VICTOR
IPC: B60V1/00
Filed: 1963-07-23
Abstract: 1,032,176. Air cushion vehicles. VICKERS Ltd. July 23, 1964 [July 23, 1963], No. 29210/63. Heading B7K. An air cushion vehicle has a flexible skirt of hollow inflatable form shaped so that when inflated it projects laterally from the periphery of the vehicle body to form a fender, there being means provided on the vehicle for retracting and lowering the skirt at will, the skirt being secured to a bottom edge of the vehicle body so that during such retracting and lowering the bottom of the skirt rotates about said bottom edge whereby, upon retraction of the skirt, the bottom of the skirt moves to a position such that the vehicle can settle without the underside of the vehicle body crushing the skirt. When constructed as a plenum chamber craft (Fig. 1, not shown), the hull 1 is extended by an inflatable skirt comprising an outer flexible wall 5 and an inner flexible wall 4, vented at 8 to admit inflating air to the skirt from the cushion space 3. Wall 5 is fluted (Fig. 2, not shown), and formed with diaphragms 6 which are each connected to a fore-and-aft boom 9 connected to hull 1 by struts 10 whereby the skirt may be raised to the dotted line position by jacks 11. For a peripheral curtain construction (Fig. 7, not shown), the skirt comprises a plurality of side-by-side tubes 27 restrained to a curved profile by diaphragms 29, and sealed at their lower ends. The tubes are inflated through non-return valves 34 from conduits 28, in turn connected through valves 36 to supply conduits 35 from which air is delivered to flow down the inside wall of the skirt to form an air curtain. To enable the skirt to retract, valves 36 are opened, thereby reducing pressure in tubes 27 above valves 34 so that the tubes are deflected upwardly by cushion pressure. Further embodiments are described in which the skirt is inflated from the cushion through ducts formed in the hull. Reference has been directed by the Comptroller to Specification 972,068.
Patent GB-1320169-A (GB)
Title: Phosphite esters of hindered phenols
IPC: C07F9/12
Filed: 1970-06-16
Abstract: 1320169 Phosphite esters of hindered phenols ASHLAND OIL Inc 16 June 1970 [16 June 1969] 29213/70 Heading C2P [Also in Division C3] The invention comprises a phosphite ester in which at least one of the available bonds on the phosphorus atom is connected to a bisphenol through the oxygen remaining after the removal of the hydrogen of a phenolic hydroxyl group, the bisphenol being a hindered bisphenol with the phenolic rings bridged through a C 1-8  aliphatic hydrocarbon linkage, and with a hydroxyl group on each ring being ortho or para to the linkage, and with all of the positions ortho and para to the hydroxyl group on each ring substituted, the substituents ortho to the hydroxyl group on each ring being hydrocarbons, and in which all the available bonds on the phosphorus atom not connected to a hindered bisphenol are connected through the oxygen remaining after removal of the hydrogen of the phenolic hydroxyl groups to a compound which is a hydroxy-substituted phenol or a phenol with at least two of the positions ortho and para to the hydroxyl group on each ring substituted. The substituent para to the hydroxyl group in each ring of the hindered bisphenol may be hydrocarbyl, halogen, NO 2 , -SR<SP>111</SP>, -OR<SP>111</SP>, -COOR<SP>111</SP>, -NR<SP>111</SP>R<SP>111</SP>, -NHOH, -NHR<SP>IV</SP>NH 2  or -NHR<SP>IV</SP>OH, where R<SP>111</SP> is hydrocarbyl and R<SP>IV</SP> is C 1-22  alkylene, The phosphite esters, which may be used as antioxidants in polymeric materials, may be prepared by reacting one mole of a phosphite ester-forming phosphorus compound, such as a phosphorus trihalide, with at least one mole of a hindered bisphenol as defined above and optionally with a further phenol as defined above.
Patent GB-876332-A (GB)
Title: Improvements in or relating to semi-conductor devices and methods of producing such devices
IPC: H01L21/308
Filed: 1959-08-27
Abstract: 876,332. Semi-conductor devices. SIEMENS & HALSKE A.G. Aug. 27, 1959 [Aug. 27, 1958], No. 29348/59. Class 37. In a PNIP or NPIN semi - conductor device, the cross-section of the collector zone is larger than that of the base zone and the cross-section of the intrinsic zone is larger in the vicinity of the collector then in the vicinity of the base zone shows a transistor in which the intrinsic zone 4 decreases uniformly in cross section from a p-type collector zone 5 to an n-type base zone 3 and in which the emitter zone 7 is p-type. This arrangement is said to lead to a reduced capacitance and leakage current. The zone 4 may be weakly doped with impurities which produce the same conductivity type as the base zone but the specific resistance of the zone and its thickness can be chosen so that for a given working voltage the collector space charge zone reaches just to the base zone 3. In further constructions (Figs. 3, 4 and 5, not shown), the cross-section of the intrinsic zone is reduced abruptly by a step, the base electrode is annular and surrounds the emitter and the base electrode is in the form of two rectangular strips, one on each side of an emitter strip. In production the emitter pellet may contain both closed and acceptor materials which diffuse at different rates gallium and arsenic and aluminium and antimony are suggested for a germanium or silicon disc. First the emitter is alloyed to the disc to form a p-type recrystallization zone. The surface around the emitter is then covered with n-type foil to form the base. The whole system is then subjected to a diffusion process so that a n-type layer is formed around the p-type recrystallization zone and the n-type impurities form the base zone. The base electrode may be attached during the diffusion process. The electrodes are then covered and the decrease in cross-section of area 4 (Fig. 1) produced by etching.
Patent GB-192496-A (GB)
Title: Improvements in, and relating to, horseshoes
IPC: A01L7/06
Filed: 1921-11-04
Abstract: 192,496. Black, T. Nov. 4, 1921. Hoof - pads; renewable treads.-In horseshoes of the kind provided at the heels with slipping- preventing and shock-absorbing pads of elastic material such as rubber, the shoe a is formed with a comparatively deep recess b on the hoof side extending from the end of each heel and accommodating a flange i on the pad in order to strengthen the shoe around the slot f through which a slipping- preventing part h of the pad extends, and is provided with a calk g behind the part h to prolong the wear of the pad.
Patent GB-659727-A (GB)
Title: Process for the recovery of methylol, methanol and alkali metal formates
IPC: C07C51/43
Filed: 1949-11-17
Abstract: Mixtures consisting of methylal, methyl formate and methanol are treated with aqueous caustic alkali to saponify the formate and resinify any aldehydes present, the methylal and methanol are distilled off and recovered together with an aqueous slurry of crystalline alkali metal formate.  The alkali metal formate is decolorized by washing with methylal.  The process may be effected continuously the methanol and methylal being distilled off together and subsequently separated.  The treated fraction is obtained by the distillation of products made by partially oxidizing hydrocarbons such as butane or propane in the vapour phase.  Preferably a small stoichiometric excess of alkali, e.g. NaOH or KOH is used as a strong aqueous solution; 30-40 per cent NaOH at 40-100 DEG  C. and 0-50 p.s.i.g. for about 20 minutes being satisfactory.  In an example a mixture consisting of 67 per cent methyl formate, 31 per cent methylal, 1 per cent methanol and 1 per cent of acetaldehyde and propionaldehyde is saponified with 30 per cent NaOH at 50-60 DEG  C., the mixture being in the saponification vessel for about 20 minutes, and the products are stripped to give an overhead of methylal and methanol which is subsequently separated by aqueous extractive distillation and a bottoms of aqueous sodium formate which after separation from oils and resins is concentrated and the crystals obtained washed with recycled purified methylal.
Patent GB-1284829-A (GB)
Title: Process for the manufacture of spinnable polyesters with good dyeing affinity
IPC: C08G63/688
Filed: 1970-06-17
Abstract: 1284829 Dyeable polyesters SOC DE LA VISCOSE SUISSE 17 June 1970 [14 July 1969] 29465/70 Heading C3R In the preparation of spinnable polyesters with good dyeing affinity from alkylene glycols and dicarboxylic acids (or their dialkyl esters), the polycondensation of the alkylene glycol and dicarboxylic acid (or, when a dialkyl ester is used as starting material, the polycondensation of the bis-glycol ester formed by the transesterification of the dialkyl ester and the alkylene glycol) is carried out in the presence of 0À02- 0À4 mol. per cent of an alkane sultone, based on the amount of acid or ester used, the alkane sultone being added, when a dialkyl ester is used, to the reaction mixture before the polycondensation beings but after the transesterification is complete and after liberated alkanol and excess glycol have been removed by distillation. In the example a polyester is prepared from ethylene glycol and dimethyl terephthalate in the presence of 1,3-propane sultone.
Patent GB-959485-A (GB)
Title: Wheel suspension system
IPC: B60G17/052
Filed: 1961-08-15
Abstract: 959,485. Tandem axle suspensions. CANADIAN CAR CO. Ltd. Aug. 15, 1961 [June 7, 1961], No. 29467/61. Heading B7D. An independent rear suspension comprises a downwardly-inclined trailing arm 18 of generally V-shape in plan, pivotally mounted in brackets 16, 17 on the frame at one end and resiliently mounted on the frame at the other end and carrying a wheel spindle 10 and a mounting 22 for a damper 23 between its ends at the apex of the V. The resilient mounting which is arranged between the vehicle centreline and the wheel track centreline 5 comprises an air spring 24 connected through a simple levelling valve 27 to an air line 26. A plurality of arms 18 may be fitted to a vehicle, a levelling valve 27 and air line 26 being provided for the springs on each side. Spigots on the arms 18 are mounted in rubber bushings in the brackets 16, 17, the central bracket 16 being adjustable longitudinally of the vehicle to align the brackets. Specifications 881,196 and 896,181 are referred to.
Patent GB-1532265-A (GB)
Title: Magnetic bubble device
IPC: G11C11/14
Filed: 1976-07-15
Abstract: 1532265 Magnetic bubble lattice propagation INTERNATIONAL BUSINESS MACHINES CORP 15 July 1976 [15 Aug 1975] 29478/76 Heading H3B A magnetic bubble lattice is propagated by the combined effects of mutual bubble-interaction and forces generated by a rotating magnetic field in an overlay pattern consisting of two sets of parallel, oblong elements, the first set 4 having ends at lattice points 3 and points spaced half a lattice constant a from a different lattice point in the direction of propagation, the second set 5 having ends at points “ and ¥ of a lattice constant from different lattice points 3 in the propagation direction, and the elements in one set being substantially perpendicular to those in the other. Herring bone and crossed patterns are described.
Patent GB-364159-A (GB)
Title: Improvements in dispensing apparatus for tablets and the like
IPC: B65D83/04
Filed: 1930-10-02
Abstract: 364,159. Tablet delivery apparatus. COTTRELL, J. S., 15, Charlotte Street, Fitzroy Square, TURGILL, J., 147, Cricklewood Lane, both in London, and EVERETT, S. J., 939, London Road, Thornton Heath, Surrey. Oct. 2, 1930, Nos. 29513/30 and 21807/31. [Class 18.] A delivery apparatus for disc-like tablets in which the tablets are delivered into a tumbler &c. without being touched by hand, e.g. for dentists' use, consists of a magazine a, Fig. 1, of flattened tubular form in which the tablets are piled edgewise in contact, if desired in a celluloid carton c. They are delivered singly through an outlet m by pressing a spring-controlled plunger i having a chamber in which a tablet is carried along. In an alternative form a number of piles of tablets are contained in a magazine having a glass, mica or like cover w, Fig. 4, and of such construction that tablets thrown in at the top will pass edgewise into vertical slots. It is mounted on a rotatable disc t apertured beneath each of the piles, and kept in required position by a spring-pressed ball or plunger 7. A semicircular segment .5 rotated by a handle 6 is movable to allow one tablet to fall through an aperture z while supporting the pile above. In another form a plate 11, Fig. 8, sliding on a bracket 12 is arranged so that any aperture 13 may be brought beneath a delivery chamber 14 containing a tablet while the pile above is supported by two prongs 16.
Patent GB-633587-A (GB)
Title: Improvements in wall constructions
IPC: E04B1/24
Filed: 1947-11-06
Abstract: 633,587. Walls ; slabs. HOROWITZ, A. Nov. 6, 1947, No. 29588. Convention date, Nov. 27, 1946. [Classes 20 (iv) and 87 (i)] In the construction of a wall, slabs 1 provided with diagonal reinforcing metal strips or bars 2 are secured to vertical metal studs by bolts passed through holes 3 in the projecting ends of the strips. The strips 2 may be pre-strained and further reinforcement 4 may be provided. Cover strips may be provided for the joints.
Patent GB-359179-A (GB)
Title: Improvements in or relating to electric heaters
IPC: H05B6/02
Filed: 1930-10-04
Abstract: 359,179. Electric heaters. BEAUMONT, T. E. and WARING, J. N., 22, Grangecliffe Gardens, South Norwood, London. Oct. 4, 1930, Nos. 29729 and 36649. [Class 39 (iii).] An electric heating-device consists of a slotted core 11, a primary winding 16, a helical secondary winding 23 and a tubular outer casing 20 connected to the ends of the winding 23 so that the current passes longitudinally along it. The core 10 may be formed with magnetic end discs 12, 13 insulated by mica 21, 22 from the casing 20, which may form a magnetic return circuit, or the casing 20 may be of non-magnetic metal. The casing 20 may be partly heated by eddy currents, or may be slotted to check such currents. Specification 335,337, [Class 39 (iii), Heating by electricity], is referred to.
Patent GB-1122919-A (GB)
Title: Benzenesulphonyl-ureas and process for preparing them
IPC: C07D335/02
Filed: 1966-07-01
Abstract: Novel compounds of the formula <FORM:1122919/C2/1> (wherein R is H, lower alkyl or phenyl lower alkyl; R1 is C2- 8 alkyl, C2- 8 alkenyl, C2- 8 mercaptoalkyl, C4- 8 alkoxyalkyl, C4- 8 alkylmercaptoalkyl, C4- 8 alkylsulphinylalkyl, phenyl lower alkyl, phenylcyclopropyl, cyclohexyl lower alkyl, cycloheptylmethyl, cycloheptyl ethyl, cyclo-octylmethyl, C7- 9 endoalkylenecyclohexyl, C7- 9 endoalkylenecyclohexenyl, C8- 10 endoalkylenecyclohexylmethyl, C8- 10\t endoalkylenecyclohexenylmethyl, lower alkyl cyclohexyl, lower alkoxy cyclohexyl, C5- 8 cycloalkyl, cyclohexenyl, cyclohexenylmethyl, or a C4 or C5 heterocyclic ring containing one O or S atom and up to 2 double bonds and linked directly or via a methylene group to the N atom; X is H, halogen, lower alkyl, lower alkoxy CF3 or NO2; Y is a C1- 4 hydrocarbon chain n is 1, 2 or 3; U is O or S; and Z is an aliphatic or cycloaliphatic hydrocarbon of at most 6 carbon atoms, a phenyl or a benzyl radical; the word "lower" referring to groups containing at most 4 carbon atoms) and salts thereof are prepared (1) by reaction of an appropriate amine R1NH2 or a salt thereof with an appropriately substituted benzenesulphonyl-isocyanate, -carbamic acid ester, -thiocarbamic acid ester, -carbamic acid halide, or -urea; (2) by reaction of an R1-substituted isocyanate, carbamic or thiocarbamic acid ester, carbamic acid halide or urea with the appropriately substituted benzene sulphonamide; (3) by reaction of an R1-substituted urea, isourea or isothiourea ether or parabanic acid with the appropriately substituted benzenesulphonyl halide and hydrolysis of the product; (4) by exchange of the S atom in a correspondingly substituted benzenesulphonyl thiourea for an O atom; (5) by oxidation of a corresponding benzenesulphinyl-urea or benzene sulphenylurea; or (6) by acylation of appropriate RHN-Y-C6H5-SO2NHCONHR1 compound.  These methods and variants thereof are described and exemplified.  The benzenesulphonyl ureas of the invention, which are stated to have a blood sugar lowering, i.e. hypoglycemic, action, may be incorporated in pharmaceutical compositions for oral administration.
Patent GB-609322-A (GB)
Title: Improvements relating to axial-flow compressors and like machines, and blading thereof
IPC: F01D5/14
Filed: 1945-11-07
Abstract: 609,322. Axial-flow compressors and turbines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and CONSTANT, H. Nov. 7, 1945, No. 29746. [Classes 110 (i) and 110 (iii)] A blade system for an axial-flow compressor, turbine &c. has radially inner and outer regions 1, 2 separated by the provision of shrouding 3 between them, the blades in the inner region 1 having higher camber, smaller exit angles, and numerically smaller stagger than those in the outer region 2. The inner and outer regions may be designed as independent blades thus causing an appreciable pressure difference as between one side of the shrouding and the other.
Patent GB-752180-A (GB)
Title: Improvements in or relating to electric communication systems
Inventor: JACOBSEN BENT BULOW
IPC: H04B1/64
Filed: 1954-10-15
Abstract: 752,180. Carrier transmission. STANDARD TELEPHONES & CABLES, Ltd. Oct. 15, 1954, No. 29747/54. Class 40 (4). A signal to be transmitted is caused to modulate a carrier of at least twice the highest signal frequency and the modulated wave is limited to produce a constant amplitude signal which is then transmitted together with a further signal indicative of the initial level of the signal. Systems in which severe limitation takes place of the audio signals themselves are acknowledged, but it is demonstrated that in these systems distortion due to intermodulation products is much more severe than in the proposed system. It is also stated that since the wave transmitted according to the invention crosses the zero line much more often, more information concerning the original wave can be transmitted. As shown, Fig. 1, the signal from the source 1 is amplified, passed through a low pass filter 13, after which it modulates at 15 the output of the oscillator 16. The modulated output after passing through a band-pass filter 17, which selects one of the side bands, is now severely limited at 19 to produce constant amplitude square-topped waves which then pass through a band-pass filter 20 having similar characteristics to those of filter 17, after which they are fed to line 21. The level of the signal is measured by device 14 which transmits a level indicating signal over line 22. At the receiver Fig. 2 (not shown), the signal from line 21 passes through a band-pass filter, a demodulation stage and a low pass filter after which it is expanded in accordance with the signal received from line 22. The level indicating signal may be transmitted by modulating a sub-carrier therewith, or may even be transmitted as a small variation in the level of the " fixed " amplitude of the transmitted signals, Figs. 3 and 4 (not shown). To prevent unwanted instability of the transmitted frequency due to noise in the intersyllabic periods an auxiliary oscillation either within or just outside the speech range is transmitted and removed by filters at the receiver, Figs. 5 and 6 (not shown).
Patent GB-801062-A (GB)
Title: Improvements in or relating to signal selection circuits
Inventor: NICHOLLS GILBERT
IPC: H03H7/48
Filed: 1955-10-19
Abstract: 801,062. Transmission circuits. RANK CINTEL, Ltd. Oct. 19, 1956 [Oct. 19, 1955], No. 29838/55. Class 40 (4). A switch which connects either of two coaxial transmission lines 3 or 4 to a matching resistance 5 so that signals from a source 1 or a source 2 are applied to a load 6, comprises make-beforebreak contacts 8, 8A and 9, 9A of a relay 7 which connect the line circuit out of use to a further matching impedance 10. The resistors both have a value equal to the modulus of the characteristic impedance of the two lines, and during changeover operation of the switch are connected in parallel to both the lines by the make-before-break contacts 8A, 9A so that abrupt change in signal level is prevented.
Patent GB-974622-A (GB)
Title: Improvements in or relating to targets for neutron generators
Inventor: REDSTONE REUBEN
IPC: H05H6/00
Filed: 1960-08-30
Abstract: In a neutron generator target composed of metal impregnated with hydrogen isotope, the metal is chosen from the group consisting of yttrium and the lanthanons.  The metal may be neodymium supported on a substrate of molybdenum, tungsten, chromium or manganese. Alternatively, the substrate may be of nickel or copper coated with molybdenum, tungsten, chromium or manganese.  In one method of preparing a target, a molybdenum cup is cleaned by an electrolytic deplating process, degreased, washed in distilled water, and furnaced at 900  DEG C. first in a wet hydrogen atmosphere and then in dry hydrogen.  A 2 mm. tungsten rod acts as a support for 1 mm. neodymium wire wound in a coarse helix and bound on with fine tungsten wire. The evaporation is performed in a bell jar apparatus evacuated to less than 5 X 10-5 mm.  The substrate is outgassed by heating to 850 DEG C. for 30 minutes, and the evaporation rod is outgassed by heating to just below the melting point of neodymium for 10 minutes. The rod is raised to a temperature (above 2000  DEG C.) above the melting point of neodymium sufficient to evaporate the full charge within one minute, and at the same time the substrate heater is switched off; evaporation occurs in a controllable manner and the thickness of the deposited layer should be between 1 and 2 mg./cm.2. Immediately the evaporation is complete the bell jar is isolated from the pump and pure hydrogen isotope is admitted to saturate the neodymium and leave an excess pressure of 3 mm. in the bell jar. Measurements have shown that saturated targets have atomic ratios of hydrogen to neodymium of at least 2.7 to 1 ; if desired the target can be baked in a vacuum to reduce the ratio to less than 1.8 to 1. Targets with the latter ratio can be heated to 450  DEG C. without loss of hydrogen and to 600  DEG C. with little loss.
Patent GB-1035677-A (GB)
Title: Improvements relating to spindle arrangements for textile spinning machines
Inventor: RIDGWAY FRANK
IPC: D01H7/04
Filed: 1963-07-29
Abstract: A spindle arrangement for a spinning &c. machine comprises a spindle proper concentrically arranged in and running in a footstep in a sleeve which carries a driving-motor and runs in a footstep in an oil container 8, there being means, referred to as a "vortex left", for conveying oil up to roller bearings at the top of the sleeve.  The spindle is clutched centrifugally to the driven sleeve, and oil-passages are provided.  When the spindle is held stationary the vortex means conveys oil upwardly in the form of mist to lubricate the bearings.
Patent GB-280249-A (GB)
Title: Improvements in and relating to percussion ignition charges for explosives
IPC: C06B35/00
Filed: 1927-11-08
Abstract: 280,249. Matter, O. Nov. 8, 1926, [Convention date]. Explosives.-Strongly compressed lead azide alone or in juxtaposition with substances such as trinitrotoluene, tetranitromethylamine, and pentaerythrite-tetranitrate is used as a percussion ignition charge. Specifications 2407/12 and 29901/12 are referred to.